选择题：Most nurses are women, but in the higher ranks of

题目内容：

Most nurses are women, but in the higher ranks of the medical profession women are in a ________. A scarcity
B minority
C minimum
D shortage

参考答案：【答案仅供学习，请勿对照自行用药等】

由于经济萧条而形成的失业属于

由于经济萧条而形成的失业属于A 摩擦性失业B 结构性失业C 周期性失业D 永久性失业

Professor Parker's lecture was very . It was one of the best lectu

炸药的主要成分包括以下那几种元素A 碳、氢、氧、氮B 铁、硫、氯、氮C 磷、氢、硫、氮D 碳、氢、磷、氮

When she______ America, she suddenly felt lonelyA arrived inB gotC reach outD re